1027465861 has 2 divisors, whose sum is σ = 1027465862. Its totient is φ = 1027465860.

The previous prime is 1027465843. The next prime is 1027465903. The reversal of 1027465861 is 1685647201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024640100 + 2825761 = 32010^2 + 1681^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027465861 - 2²¹ = 1025368709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1027465811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513732930 + 513732931.

It is an arithmetic number, because the mean of its divisors is an integer number (513732931).

Almost surely, 2^1027465861 is an apocalyptic number.

It is an amenable number.

1027465861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027465861 is an equidigital number, since it uses as much as digits as its factorization.

1027465861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1027465861 is about 32054.1083326303. The cubic root of 1027465861 is about 1009.0727237455.

The spelling of 1027465861 in words is "one billion, twenty-seven million, four hundred sixty-five thousand, eight hundred sixty-one".